How does one "study assembler"? I know several (dozen) machine languages by hearth (3E02 == MVI A,2). And I wish I dont, because it is useless knowledge. Maybe

How does one "study assembler"? I know several (dozen) machine languages by hearth (3E02 == MVI A,2). And I wish I dont, because it is useless knowledge. Maybe worth studying is some advanced macro assembler, but I doubt it. You could learn to use unix m4 for the same effect.